Positive individual and social behaviors were assessed among male gang members and males involved in community-based organizations aimed at promoting positive youth development. Correlations of attribute scores were more often significant for the gang than for the nongang youth. Approximately one-quarter of the gang youth had total positive…

Demonstrates how different experimental designs arise from variation of three basic distinctions: block versus treatment factors, fixed versus random factors, and crossed versus nested factors. Argues that understanding how these distinctions influence statistical analysis can reduce amount of experimental design. Presents an example of this by…

Discusses the effects of sampling scheme selection on the admissibility of log-linear models for multinomial and product multinomial sampling schemes for prospective and retrospective sampling. Notes that in multinomial sampling, marginal frequencies are not fixed, whereas for product multinomial sampling, uni- or multidimensional frequencies are…

The presence of individual and ecological assets for positive development was assessed through data derived from individual interviews with 45 African American adolescent male members of inner-city Detroit gangs and 50 African American adolescent males living in the same communities but involved in community-based organizations (CBOs) aimed at…

To explore potential bases of positive development among gang youth, attributes of positive individual and social behavior were assessed in individual interviews with 45 African American adolescent male members of inner-city Detroit gangs and 50 African American adolescent males from the same communities but involved in community-based…